Valve.



VALVE.

APPLICATION FILED MAY I2. I9I5.

l l 92,980, Patented Aug. 1, 19.16.

PETER J. BODE, OF ST. LOUIS, MISSOURI.

VALVE.

Specification of Letters Patent.

Patented Aug. 1,1916.

Application led MayflZ, 1915. Y Serial No. 2756.18. .A

To all whom t may concern Be it known that I, PETER J. Bonn, a citi-I Zen of the United States, and resident of St. Louis, Missouri, have invented certain new and useful Improvements in Valves, of

which the following is a specification containing a full, clear, and exactv description,

reference beingvhad tothe accompanying drawings, forming a part hereof.

The objects of my invention are to con-l struct a valve to be used principally with air pumps so as to hermetically seal the ,air

container when filled, to eliminate the, spring and needle andconsequent reciprocating action of these elements in a conventional valve; to permit the air to pass from, the pump to the container (inner tube forl tires or tank) in an unrestricted path, through an unrestricted aperture.

In the conventional valve, an initial pressure of twenty to thirty pounds is required tional valve the action of the piston is veryv slow at the head end of its stroke (in a sin-v gle acting pump). Should the valve close due to an equality of pressure in the container and the pump cylinder, the remaining air in the pump is lost through leakage or is,

on the return of the piston to the crank end, expelled on the next air intake. My ported plug obviates this difficulty, in that the air is. admitted. evenly through the entire stroke, the speed of piston travel remaining constant throughout the entire stroke length.

In the valves as now'constructed, with the restricted valve opening, a small foreign substance is sufficient to block the ingress and egress ofthe air through the valve. By removing all obstruction in my device the air is permitted to pass through the valve freely. The valve portion of my device is removable from the tank or container when it is filled, making a leaky valve an impossibility through imperfect springs, ungroundvalve seats, etc.

With the conventional valve, the spring is compressed and expanded with each stroke of the piston which subjects it to an enormous wear on a high speed pump. Should the valve portion of my device become defective, it can be easily replaced since it is not positioned on the valve itself but in the detachable portion of the device.

TWith the above and other'objects in view, my invention has relation to certain novel features of construction and operation, examples of which are described in the following specification and illustratedv in the accompanying drawings 4in which- Figure l. is a longitudinal fragmental sectionalelevation of my device. Fig. 2. is an elevation of the portedfplug used in my device and shown in elevation` in Fig. l. Fig.v 3. is a sectional plan taken along the line 8-3 of Fig. l. r Fig. LLis a sectional plan taken along the line 4 4 of Fig. 1.

Similar reference characters indicate corresponding part's in all the views.

The numeral l designates an externally threaded tube having a Ahead 2 at one exremity, threads 3 on its entire outer surace.

1i designates a.. bolt, having internal threads so 4designed as to mesh with threads 3. i

5 designates a hollow ported plug having the rectangular head 5, the port 6 and the external threads 7 Plug maybe screwed into the top 8 'oftube l. Thismuch of the device remains in -a fixed position when in use; the remainder of the device is used to operate that portion already described.

To position thetube l` (which is the conventional valve stem as used for tires) the head 2 isy inserted .in an apertureof the container to be filled with gas, the nut 4 being removed for this purpose, then the nut Li is,` screwed vdowntoward the head 2, compressing the wall of the `container between the head 2 and the bolt 4.* Thuscommunication is established between the container and up a container with air as there would be no means to close the valve when the pump was being worked on its crank end stroke.

To make this device operative, I use the remainder of the device, which is portable, and which is disclosed in my drawings.

9 designates an internally threaded coupling secured to the tube 1 by the threads 10, and to the casting 11 by the threads 12; 13 designates an internally threaded collar, secured to casting 11 at 14; 15 designates a tubular bushing iirmly secured to casting 11.

16 designates a conventional valve packing; 17, a socket wrench threaded at 18 and 19 and terminating in the rectangular cup socket 20. The cup socket 20 is of such size as to completely but tightly envelop the head 5 having an annular flangeat its base of plug 5 when wrench 17 is screwed inwardly; the top of the wrench 17 terminates in the rectangular head 21. y

22 designates a key, having a socket wrench at one end and a handle (not shown) at the other. By placing the key 22 over the head 21 so that socket wrench 23 envelops head 21, the wrench 17 may be turned thereby lowering or raising the screw plug 5 and thereby establishing or cutting ofl:l the communication of the tube 1, and hence the air container with the exterior of the tank, etc. Into the casting 11 at 24 is screwed the hollow internally threaded casting 25.

26 designates a ball which is seated as shown in Fig. 1. A coil spring 27 is secured at one end tothe pin 28 and at the other to the ball 26; this is the conventional check valve; 29' designates internal threads by which through a coupling (not shown) the device may be connected to a pump.

30 designates a screw plug which may be removed for purposes of cleaning and adjusting the inner parts of the device.

The ball valve performs the same function as does the conventional spring valve now in use.

To use my device, screw the coupling 9 to the tube 1 and then screw casting 11 into the coupling 9 and to the tubel. Attach key 22 tol head 21 and turn to the left thereby raising the screw plugl 5 and establishing communication between the container and the pump. After the container is filled to the proper pressure turn the key to the right until plug 5 is screwed securely into tube l.

The tire or container is now securely closed; coupling 9 and casting 11 are unscrewed, leaving the tube 1, hermetioally sealed, fastened to the container.

It is to be specially noted that the valve portion of my device is in the portable portion. rIhis is of the greatest utility since any defect in the valve can be more readily detected and remedied, and a leak will not be cumulative in its effect since the leaking can only occur during the actual pumping operation. One of these devices can be utilized with any number of valves.

It is to be further specially noted that the part 6 which pierces the plug from side to side, and which is in communication with the hollow portion of the plug is of the same total area as the cross-section of the tub'e, thereby causing the path between the container and the pump to be absolutely unrestricted.

l/Vhat I claim is- 1. In a device of the class described the combination of a cut-oft1 valve comprising a tubular member having an internally threaded seat and an element tubular for a portion of its length threaded into said seat, an annular iiange for engagement with the end of said internally threaded tubular element said externally Vthreaded element having a port in its tubular portion with an element arranged to be detachably secured to the element having the internally threaded seat and having a duct therein in communication with the end of said internally threaded seat, a check valve in said duct, and means comprising a threaded stem carried by said detachable element for the operation of said threaded element having a port.

2. In combination with a valve stem and means for securing the valve stem to a container for a fluid under pressure and having at its free end an internally threaded seat, a ported valve threaded to said stem, a check valve, means for detachably securing the check valve to said valvestem, a threaded element carried by said check valve for the operation of said ported valve, and means foroperating said threaded element.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses.

PETER J. BODE. l/Vitnesses:

MILDRED STOCKER,

J. A. NoLAN.

Copies of this patent may be obtained `for :ive cents each, by addressing the Commissioner of Patents, Washington, D; C. 

